Mine-cage.



F. N. WILSON. MINE GAGE.

APPLIOATIOH IILED I'EB. 19,1906.

JIM 25 I llllllllll lllllllllllllll l g WITNESSES: //9

j 130, 4 By 7 A TTORNEYS PATBNTED JUNE 26, 1906.

FRANK NELSON WILSON, ONE-HALF TO GEORGE OF CRIPPLE CREEK, COLORADO,ASSIGNOR OF D. KILBORN,

OF CRIPPLE CREEK, COLORADO.

MINE-CAGE- Specification of Letters Patent.

Patented June 26, 1906.

Application filed February 19, 1906. Serial No. 301.877.

To all whom it may concern:

Be it known that I, FRANK NELSON WIL- SON, a citizen of the UnitedStates, residin at Cripple Creek, in the county of Teller and State ofColorado, have invented a new and useful Mine-Cage, of which thefollowing is a specification.

This invention relates to mine-cages of that class in which lockingchairs or dogs are employed for the purpose of holding the cagestationary at a landing during loading and unloading.

The principal object of the invention is to provide locking chairs ordogs that are so mounted as to permit ready adjustment to operativeposition by the eager standing on the floor of the cage or by anyattendant stationed at the landing and in which the chairs or dogs willbe moved automatically to inoperative position as soon as relieved fromthe weight of the cage, so that the latter is then free to ascend ordescend.

With these and other objects in view, as will more fully hereinafterappear, the invention consists in certain novel features of constructionand arrangement of parts hereinafter fully described, illustrated in theaccompanying drawings, and particularly pointed out in the appendedclaim, it being understood that various changes in the form,proportions, size, and minor details of the structure may be madewithout departing from the spirit or sacrificing any of the advantagesof the invention.

In the accompanying drawings, Figure 1 is a vertical section of thelower portion of the mine-cage provided with chairs and lockingdogsconstructed in accordance with the invention. Fig. 2 is an inverted planview of the cage, showing the shaft-timb ers and guides in section.

Similar characters of reference are employed to indicate correspondingparts throughout both figures of the drawings.

The timbering A and guides B are of any ordinary construction, and ateach of the landings C are arranged recesses 10 for the reception of thelocking chairs or dogs 11, the recesses bein of such depth that when thecage is locked in place its floor will be level with the surface of thelanding, and thus permit ready loadin and unloading.

At a point un er the cage are bearings for the reception of atransversely-disposed rockshaft 15, that is provided with two sets oflevers 16, each having arms projectin in opposite directions from theshaft, an to each arm of each lever is connected one of the dogs orchairs 11, said dogs or chairs being arranged to slide in guiding-openins 18, that are formed in the side members 0 the cageplatform.

Surrounding the shaft 15 is a torsion-spring 20, that has one endrigidly secured to a pin 21 on the bottom of the cage, while theopposite end of said spring is secured to or bears on one of the levers16, so that the stress of the spring will be exerted on the shaft insuch direction as to tend to withdraw all of the chairs or dogs to aposition within the lines of cage-that is to say, to remove them fromthe recesses 10 and permit the ascent and descent of the cage.

Secured to one end of the rock-shaft is an operating-lever 23, thatextends up through a slot in the floor of the cage and is convenientlyarranged for manipulation by the eager, who, standing on the platform,can readily move the lever for the purpose of throwing out the chairs ordogs to locking position. Connected to the lever 23 is a pair of handledrods 24, the outer ends of which are arranged within convenient reach ofa person standing at the landing. These rods are guided through suitableeyes 25, secured to the frame of the cage, and by pulling on one orpushing on the other the dogs or chairs 11 may be readily projected tolocking position, so that the dogs may be manipulated on either the cageor the landing and danger of accident minimized.

After the loadin or unloading of the cage it is moved upwar and as soonas the chairs or dogs are free from the weight of the cage or its loadsprin 20 will act to withdraw all of the chairs or ogs, so that the cagemay read ily ascend or descend the shaft.

claim- In combination, a cage-platform havin side or edge membersprovided with uidingopenings, a rock-shaft journaled below the platform,a pair of levers secured to the rockshaft, and each having armsprojecting in opposite directions from the shaft, longitudinally-movablechair members havin their inner ends pivotally connected to sai arms,and the outer ends extending through the guiding-openings, a leversecured to the shaft and extending up through an opening in theplatform, a torsion-spring arranged on the rock-shaft and tending toturn the same to effect Withdrawal of the chair members, and a pair ofhandled rods guided by the cage and extending from the lever to pointsadjacent the opposite sides of said cage, substantially as specified.

FRANK NELSON WILSON.

Witnesses:

F. P. ADDLEMAN, N. S. WILSON.

